CVE-2026-93132

A flaw was found in the Linux kernel's Advanced Configuration and Power Interface (ACPI) implementation for RISC-V architectures. Specifically, the riscv_acpi_add_prt_dep() function contains a loop that incorrectly handles error conditions. This can cause the loop to skip necessary entry pointer updates, leading to improper processing of ACPI entries. Such an issue could potentially result in system instability or unexpected operational behavior.

This vulnerability is rated as having Low severity because it exclusively impacts systems running on the RISC-V architecture utilizing ACPI table configurations, requiring malformed or unexpected firmware tables during system initialization. The flaw resides in platform-specific interrupt routing logic, meaning standard enterprise architectures such as x86_64, aarch64, s390x, and ppc64le are entirely unaffected. Consequently, the operational risk in standard Red Hat enterprise environments is minimal.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.